<?php

/*
 * This file is part of SwiftMailer. (c) 2004-2009 Chris Corbyn For the full copyright and license information, please view the LICENSE file that was distributed with this source code.
 */

/**
 * The minimum interface for an Event.
 *
 * @package Swift
 * @subpackage Events
 * @author Chris Corbyn
 */
interface Swift_Events_Event {
	/**
	 * Get the source object of this event.
	 * 
	 * @return object
	 */
	public function getSource();
	
	/**
	 * Prevent this Event from bubbling any further up the stack.
	 * 
	 * @param boolean $cancel,
	 *        	optional
	 */
	public function cancelBubble($cancel = true);
	
	/**
	 * Returns true if this Event will not bubble any further up the stack.
	 * 
	 * @return boolean
	 */
	public function bubbleCancelled();
}
